However, because these participants were all young and healthy, the discovery requires a different explanation. The researchers believe that the anterior corpus callosum in drummers contains fewer fibers, but that these fibers are thicker than in non-drummers.
This is important because thicker fibers transfer impulses more quickly. Indeed, in earlier work , scientists have shown that mean diffusion scores are associated with quicker transfer times between the hemispheres. Based on gaming console technology, the test included a variety of drum rhythms and varying levels of complexity. The software measured how accurately each drummer followed a given drum pattern and generated a score. Unsurprisingly, the drummers scored significantly better than the control group.
Using these scores, the researchers could demonstrate that those who performed best in the drumming test had the highest diffusion rates in their corpus callosum. As the authors explain:. An efficiently organized brain requires less effort to complete a task — scientists call this sparse sampling. These findings are interesting in their own right, but the authors hope that their results might also be clinically useful.
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The researchers also found that the thicker the fibres in the corpus callosum; the better the drumming performance across all of the participants. More than this, they also found that the brains of the drummers showed less activity in areas dedicated to motor tasks than those of the control subjects during their performances. Login here. Register Free.
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